Without turning this thread into a nook versus kindle versus aldiko debate: I just downloaded a book to read on the nook app. After I did that, I went into "Applications" in my phone's settings, and I noticed that the nook app is taking up 17.5MB (17.42 application, 76.0 data)! In the Market, it says it's 5.21MB - that's still a lot, but not 17.5. WTF?!? What a load of crap. Now I guess I'll have to root, just to be able to run apps off my sd card.